For lifting, pushing, spreading, bending, pressing or straightening requirements. Not affected by temperature extremes. All models work in upright, angle or horizontal position. Equipped with labor saving air pump. Electrically welded base and cylinders to assure strength and eliminate leaks. Carrying handle included. Pump handle included. Comes packaged in heavy duty blow molded case. Complies with ANXI/ASME B30.1 and PALD-1 standards. 1 Year Warranty.